Date of report : 22jul2019, date rec¿d by mfr : 26jun2019.The manufacturer's field service engineer could not duplicate the reported complaint.No external o2 sensor present at patient outlet, ran unit at set parameters, unit cycles normally.Noted code 5003 in log, ran unit for 20 min at 100% o2, no alarms activated, internal voltage stable at 0.57v, no evidence of o2 leak, cooling fans are operational.The manufacturer's field service engineer could not find any problem, extended system test (est) passed.Submission of a report does not constitute an admission that medical personnel, user facility, importer, distributor, manufacturer, or product caused or contributed to the event.
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